1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc9ae137b65e54e31fb4d9925d546b40bc4b57796e08a3dfff69d98fbd444ed9e. Chain 2 (Bitcoin): anchored in block 953717 (2026-06-15T01:05:33Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/8882d691-182f-4b8d-ab8a-8d733d609da8.json and https://artists.proofprofile.net/proofs/artist/8882d691-182f-4b8d-ab8a-8d733d609da8.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
Bicentennial Series-Battle Of New Orleans
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc0f678d0db717d950b77ed4ae754dce3a2baad5e890e900abeefadabe8cd6723. Chain 2 (Bitcoin): anchored in block 957122 (2026-07-08T03:39:04Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577933.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x16cfaf5e2e4c9b4ca6914c16568b546b735dcbb247a1135ee99dc3f537a14428. Chain 2 (Bitcoin): anchored in block 956349 (2026-07-02T11:34:59Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577934.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xde2d16f33ba4ae9659c37bbaca6e30e21ebfb5c7b546d4b6a9779991793e8679. Chain 2 (Bitcoin): anchored in block 956891 (2026-07-06T07:16:32Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577936.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x2f9d724fcde069b19aaa2a1c1fc6af70da7307df16a3ac2d6265a70f8699b1d3. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577938.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x92cc74ddbdcc1829f67a3ee2d36f9d1f4b0c2cb222fb2b1b7881658fef776124. Chain 2 (Bitcoin): anchored in block 953536 (2026-06-13T17:25:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577939.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xcfe0a323845c47f19d38d55a15d6155af4430847317d6beadbe56ccc1ec0a069. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577940.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x3883fc9226d7b7cb86f5cdb7679d7cf55972d57b592cfc41ce7389fc8ffd5d50. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577941.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xaecb0d3bd098c884b0936e2462817a92b95b80cf79b47fa35ae1fb7d2d6984e9. Chain 2 (Bitcoin): anchored in block 960344 (2026-07-31T04:14:58Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577931.
1. Confirm isrcCode identifies the recording in the pre-2022 source corpus and cc-db-prod record 2. GET OTSVerificationAPI → server-side canonical-record, hash, and attestation checks must pass 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Confirm CopyrightID is the CopyrightChains transaction hash 5. If all match: the cc-db-prod record is independently anchored on Bitcoin at OTSTimestamp Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x84ed4988be8fdebb853382e9aeb8cb90bc43d90f16b41d3a0a7393e841cef00b. Chain 2 (Bitcoin): anchored in block 960427 (2026-07-31T15:59:18Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577932.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0xc1ea1f7c0e0fa4404eaa3f174aaa9276f9d2f2fe406bd60bb56ff37f4134983d. Chain 2 (Bitcoin): anchored in block 960368 (2026-07-31T08:26:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/US3L61577942.
American Music: Traditional American Folk Songs
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x7afa9b307f69346f52ce13b2a2e1bbec043fbd1e95ac1ccd87c95fafc243df14. Chain 2 (Bitcoin): anchored in block 957120 (2026-07-08T03:22:41Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCJA0606254.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x95b2ffbe5f14d7887ce36aa9a6c6e7758593c3eceaedf7840197f4704d8932ba. Chain 2 (Bitcoin): anchored in block 957118 (2026-07-08T03:20:19Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCJA0602495.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x82cd8d0f234fe6924af2eeae35ae548eb5435209ff18181d2d0bf532d42fee3a. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCJA0602489.
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x838e051e394b0ea61699151739ee44b07b388a6346fe29ce01e41e23ec090dcc. Chain 2 (Bitcoin): anchored in block 960500 (2026-08-01T03:13:03Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCJA0606256.
Little Big Leagues: Music for Kids Who Love Baseball
Legendary: A Tribute to Jim Croce, Johnny Cash, and the Folk Music Tradition
40 Songs from Movies, TV Shows, and Commercials
Anthology of Classic American Folk Songs
40 American Folk Classics for Thanksgiving Dinner
Tie the Knot Tunes Presents: Hill Country Wedding Folk Songs
Next Year in Jerusalem: Songs to Celebrate Passover
Easter Egg Hunt: 50 Children's Songs for Easter
Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x31a86605fdefac7365c64a50b5a80aef46a4afc449bec6a24167aa4cf60ad914. Chain 2 (Bitcoin): anchored in block 957145 (2026-07-08T08:56:20Z), registered by our registry partner. The server verifies the private canonical record against OTSHash without exposing internal provider keys. Confirm the public ISRC, CopyrightID, and Bitcoin evidence via https://artists.proofprofile.net/api/v1/bot/ots/verify/track/USCJA0603194.
Do the Bunny Hop! 50 Songs to Delight Children of All Ages
Whistle-Stop Tour: 50 Must Have Songs for Presidents' Day
Fireside Folk: Classic American Favorites to Warm Your Winter
Chill Baby Steampunk: Folk Music for Playtime
At the Playground 50 Songs for Children of All Ages
30 Classic Folk Songs to Celebrate Earth Day